All Questions ⁺⁰237665 Questions

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659

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help

Let $f(x)=3x+4$ and $g(x)=2x-3$. If $h(x)=f(g(x))$, then what is the inverse of $h(x)$?

Lightning Jul 21, 2018

+1

1948

3

+198

Set theory and counting and probability

Max0815 Jul 21, 2018

Jul 20, 2018

+3

1790

2

+30

Last question, running late please help

Dr. Math's four-digit house number ABCD contains no zeroes and can be split into two different two-digit primes ``AB'' and ``CD'' where the digits A, B, C and D are not necessarily distinct. If each of the two-digit primes is less than 40, how many such read more ..

Memes4Life132 Jul 20, 2018

+1

798

6

+30

Need help, thank you for answering

John draws a regular five pointed star in the sand, and at each of the 5 outward-pointing points and 5 inward-pointing points he places one of ten different sea shells. How many ways can he place the shells, if reflections and rotations of an arrangement read more ..

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Memes4Life132 Jul 20, 2018

+1

840

2

+30

Need help. Please reply fast, thank you

In the local frisbee league, teams have 7 members and each of the 4 teams takes turns hosting tournaments. At each tournament, each team selects two members of that team to be on the tournament committee, except the host team, which selects three members. read more ..

Memes4Life132 Jul 20, 2018

0

542

2

I neeeddd HALP!

Guest Jul 20, 2018

+3

1922

1

+537

Some help with expected value...

Two jokers are added to a 52 card deck and the entire stack of 54 cards is shuffled randomly. What is the expected number of cards that will be strictly between the two jokers?

MathCuber Jul 20, 2018

0

585

1

how would i solve this radical equation?

Guest Jul 20, 2018

0

802

1

Help with functions

Define $g$ by $g(x)=5x-4$. If $g(x)=f^{-1}(x)-3$ and $f^{-1}(x)$ is the inverse of the function $f(x)=ax+b$, find $5a+5b$.

Guest Jul 20, 2018

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1883

2

Suppose that a,b, and c are positive integers satisfying (a+b+c)^3 - a^3 - b^3 - c^3 = 150. Find a+b+c.

Suppose that a,b, and c are positive integers satisfying (a+b+c)^3 - a^3 - b^3 - c^3 = 150. Find a+b+c.

Guest Jul 20, 2018

Jul 19, 2018

0

2571

2

Find the last 2 digits of 18^(37)

Find the last 2 digits of 18^(37)

Guest Jul 19, 2018

+3

1009

1

+394

Suppose f is a polynomial such that f(0) = 47, f(1) = 32, f(2) = -13, and f(3)=16. What is the sum of the coefficients of f? Please explain.

Suppose f is a polynomial such that f(0) = 47, f(1) = 32, f(2) = -13, and f(3)=16. What is the sum of the coefficients of f? Please explain.

hellospeedmind Jul 19, 2018

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